Molecular electrocatalysts for the oxidation of hydrogen and the production of hydrogen–the role of pendant amines as proton relays

DL DuBois, RM Bullock - European Journal of Inorganic …, 2011 - Wiley Online Library
… of pendant amines incorporated into diphosphane ligands. These pendant amines function
… The hydride acceptor ability of metal cations, along with the basicity of pendant amines, are …

High catalytic rates for hydrogen production using nickel electrocatalysts with seven-membered cyclic diphosphine ligands containing one pendant amine

MP Stewart, MH Ho, S Wiese… - Journal of the …, 2013 - ACS Publications
… is an efficient electrocatalyst for hydrogen production at the … pendant amine matching that
of the acid used for proton delivery. Additionally, the fast catalytic rates for hydrogen production

Hydrogen production using nickel electrocatalysts with pendant amines: ligand effects on rates and overpotentials

S Wiese, UJ Kilgore, MH Ho, S Raugei, DL DuBois… - ACS …, 2013 - ACS Publications
A Ni-based electrocatalyst for H 2 production, [Ni(8P Ph 2 N C 6 H 4 Br ) 2 ](BF 4 ) 2 ,
featuring eight-membered cyclic diphosphine ligands incorporating a single amine base, 1-para-…

Theoretical design of molecular electrocatalysts with flexible pendant amines for hydrogen production and oxidation

LE Fernandez, S Horvath… - The Journal of Physical …, 2013 - ACS Publications
… that more flexible pendant amines would facilitate the … N distances and more flexible
pendant amines may assist in … other related catalysts with pendant amines that may be more …

Thermochemical and mechanistic studies of electrocatalytic hydrogen production by cobalt complexes containing pendant amines

ES Wiedner, AM Appel, DL DuBois… - Inorganic …, 2013 - ACS Publications
… been studied for electrocatalytic hydrogen production using 1:1 [(… , and that the pendant
amines of these complexes facilitate … of the protonated pendant amine from the nonproductive …

The role of pendant amines in the breaking and forming of molecular hydrogen catalyzed by nickel complexes

S Raugei, S Chen, MH Ho… - … A European Journal, 2012 - Wiley Online Library
… 2 oxidation and production. We find that the presence of pendant amine functional groups
greatly facilitates the heterolytic H 2 bond cleavage, resulting in a protonated amine and a Ni …

Moving protons with pendant amines: Proton mobility in a nickel catalyst for oxidation of hydrogen

M O'Hagan, WJ Shaw, S Raugei, S Chen… - Journal of the …, 2011 - ACS Publications
production/oxidation of hydrogen. In this work we describe intramolecular proton transfer
between Ni and positioned pendant amines for the hydrogen … , with pendant amines positioned …

Production of hydrogen by electrocatalysis: making the H–H bond by combining protons and hydrides

RM Bullock, AM Appel, ML Helm - Chemical Communications, 2014 - pubs.rsc.org
… The pendant amines used in our research are designed to function as proton relays that
deliver protons to the correct location; they facilitate both intramolecular and intermolecular …

Two pathways for electrocatalytic oxidation of hydrogen by a nickel bis (diphosphine) complex with pendant amines in the second coordination sphere

JY Yang, SE Smith, T Liu, WG Dougherty… - Journal of the …, 2013 - ACS Publications
hydrogen addition has the protons on the pendant amines in an endo position facing the metal.
In this position, the protons are stabilized by a Ni···H–N hydrogen … –N hydrogen bond and …

Hydrogen oxidation catalysis by a nickel diphosphine complex with pendant tert-butyl amines

JY Yang, S Chen, WG Dougherty, WS Kassel… - Chemical …, 2010 - pubs.rsc.org
… −1 is the fastest reported for a molecular hydrogen oxidation … species and a protonated
pendant amine. The transition state … Ni(0) species with two protonated pendant amines with a free …